Imperial College London
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Professor Norbert Hoffmann

Faculty of Engineering, Department of Mechanical Engineering

Visiting Professor
 
 
 
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Contact

 

n.hoffmann

 
 
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Location

 

557City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Kruse:2014:10.1007/978-3-319-04753-9_15,
author = {Kruse, S and Stingl, B and Hieke, J and Papangelo, A and Tiedemann, M and Hoffmann, N and Ciavarella, M},
doi = {10.1007/978-3-319-04753-9_15},
pages = {149--160},
title = {The influence of loading conditions on the static coefficient of friction: A study on brake creep groan},
url = {http://dx.doi.org/10.1007/978-3-319-04753-9_15},
year = {2014}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - This work focuses on the phenomenon of creep groan in brake systems as a problem leading to customer complaints (Kinkaid et al., J Sound Vib 267:105–166, 2003). It is potentially induced by a stick-slip phenomenon in the friction interface, but the dynamics are not well understood yet. This work tries to contribute to the understanding of the excitation mechanisms, the interaction of different length scales and possible measures to influence the phenomenon. It presents a dual—based on simulation and experiment—approach to investigate the phenomenon employing works of Ben-David and Fineberg (Phys Rev Lett 106, 2011) and Bar Sinai et al. (Geophys Res Lett 39, 2011). On the one side using the approach of Bar Sinai et al. (Geophys Res Lett 39, 2011) a one-dimensional simulation model is built up based on the contact state evolution of a representative brake pad and disc couple. This model is used to describe the interface dynamics while taking into account the surrounding simplified loading geometry. Parallel to this approach an experimental setup with a simplified disc brake is built up. As the simulation model allows to predict the level of the average static friction coefficient for different load cases, the simple test setup allows a validation. The experimental results show that the static friction coefficient can be systematically changed by modification of the loading geometry while one still observes the perturbing influence of uncontrolled process parameters.
AU  - Kruse,S
AU  - Stingl,B
AU  - Hieke,J
AU  - Papangelo,A
AU  - Tiedemann,M
AU  - Hoffmann,N
AU  - Ciavarella,M
DO  - 10.1007/978-3-319-04753-9_15
EP  - 160
PY  - 2014///
SN  - 2191-5644
SP  - 149
TI  - The influence of loading conditions on the static coefficient of friction: A study on brake creep groan
UR  - http://dx.doi.org/10.1007/978-3-319-04753-9_15
ER  -
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